An optical connection structure including first optical fibers, second optical fibers, a first optical connector, and a second optical connector is disclosed. The first optical connector is configured such that each of first distal end portions of the first optical fibers protrudes from a first front end surface to the outside when the first optical connector and the second optical connector are connected to each other. Each of the first distal end portions is inserted into a corresponding second fiber hole of the second optical connector. The second optical connector is configured such that each of second distal end portions of the second optical fibers is moved rearward inside second fiber holes due to each of the first distal end portions respectively inserted into the second fiber holes. The first optical fibers and the second optical fibers are optically coupled to each other inside the second fiber holes.

The present invention provides a dust-proof adapter comprising an adapter body, a flexible element, and a cap, wherein the adapter body has an opening at a coupling side and a ring-shaped surface surrounding the first opening, the flexible element is arranged onto the ring-shaped surface, and the cap detachably covers the adapter body for protecting the first opening. When the cap is covered on the first opening, the cap applies an action force along an axial direction of the adapter body on the flexible element thereby achieving air-tight and dust-proof effect.

A factory processed and assembled optical fiber arrangement is configured to pass through tight, tortuous spaces when routed to a demarcation point. A connector housing attaches to the optical fiber arrangement at the demarcation point (or after leaving the tight, tortuous spaces) to form a connectorized end of the optical fiber. A fiber tip is protected before leaving the factory until connection is desired.

Provided is an optical module assembly including: an optical module body in which an optical transceiver is built; a first connector coupled to one side of the optical module body to be connected to an optical transceiver in the optical module body; a second connector, in which an insertion hole for inserting an optical cable is formed and the optical cable is inserted into the insertion hole, connected to the first connector to connect the optical cable to the optical transceiver connected to the first connector; and a disconnection unit installed on the first connector and the second connector to release the connection between the first connector and the second connector by rotation.

An outdoor rated ingress protected connector assembly is formed by a mating connector and a first connector. A lock ring secures the mating connector and first connector together. An outer collar nut is displaceable to unlock the connector assembly to gain access to the internal components. The mating connector and first connector have a fiber optic connector secured therein, which form a transmission pathway when the connector assembly is formed.

A sealing enclosure is configured to connect to a mating enclosure. The sealing enclosure loosely receives a connector within a connector volume so that the connector, which may be of a standard type used in electronic or optic data transmission, may be displaced within a plug face at the forward end of the connector volume. The connector may compensate variations in the position of a mating connector with respect to the mating enclosure. The sealing enclosure allows to seal off the connector volume and engage the sealing enclosure with a mating enclosure in a single motion. This is affected by having a cable seal interposed between an inner body and an outer body. If the outer body is moved forward to engage the mating connector, the cable seal is squeezed between the cable and the inner body sealing off the connector volume at the rearward end of the inner body.

An optical connector assembly a first structure and a second structure, the two structures secured together using a retention structure to form a hybrid assembly. The retention structure uses a slot apex located in a slot channel for securing at least one latch pin of a coupling nut to an adapter housing forming the ingress protected connector without the use of a bias spring. The hybrid assembly is designed to resist water or debris ingress, and may eliminate the use of a bias force to further resist separating the hybrid assembly. When the latch pin passes over the apex and resides in a recess, an audible sound is made indicating the hybrid assembly adapter and coupling nut is mated.

To provide an optical connector that can prevent degradation of end faces of cores using a simple structure. The optical connector is adapted to connect single-mode optical fibers for visible light with a wavelength of less than or equal to 650 nm to ultraviolet light, specifically, connect the optical fibers by allowing ferrules having fixed thereto the respective optical fibers to be inserted into a sleeve and allowing the ferrules to butt against each other, in which a film of nitride, oxide, or fluoride is formed on an end face of each of the optical fibers and the ferrules.

Connector assemblies are described herein. For example, a connector assembly including: a housing configured to accept a first ferrule and a second ferrule. The connector assembly may also have a push/pull clip that is configured to depress a protrusion that rotates down a connector device to remove the connector assembly from an adapter. The push/pull clip is integrated with a cable boot assembly that allows a user to apply a distal force to remove or insert the connector assembly into the adapter housing. The push/pull clip is configured for use to release a MPO and LC connector type from an adapter.

An optical system may include an objective lens system having a primary optical axis and a relay lens system having a relay optical axis. The relay optical axis may have a first angular offset with respect to the primary optical axis. The objective lens system may be configured to provide light from a light source to the relay lens system and provide light from the relay lens system to an image sensor. The relay lens system may be configured to provide light from the objective lens system to an end face of an optical fiber, where the end face has a second angular offset with respect to a cross-sectional axis of the optical fiber. The relay lens system may provide light reflected from the end face to the objective lens system.